034Motorsport PCV Breather Hose for Audi EA839 2.9T/3.0T | 034-101-3108, 034-101-3109

Upgrade your failure-prone PCV breather hose with the high-performance, reliable 034Motorsport PCV Breather Hose, engineered for enhanced durability and long-lasting performance. The 034Motorsport PCV Breather Hose isn’t just an upgrade for tuned vehicles - it’s also a critical safety enhancement for all EA839-equipped vehicles.

The PCV breather hose on the EA839 relies on a pair of internal check valves; however, these factory components are prone to premature failure. Once these check valves fail, they can no longer regulate crankcase pressure properly, causing the crankcase to pressurize and potentially allowing hot oil to escape that can lead to serious engine damage, including the risk of fire. This failure occurred to a development vehicle in Ashes to Asphalt, documenting the absolute worst case scenario of when the PCV system can fail.

This failure can occur on bone-stock vehicles or vehicles tuned with Stage 1, 2, or 3 power levels. The 034Motorsport PCV Breather Hose is designed to offer reliable crankcase ventilation for the EA839 V6 at all power levels.

Features:

• Direct Replacement of the Failure Prone OE PCV Hose
• Ensures High Flow Crankcase Ventilation to Prevent Crankcase Pressurization
• Eliminates Potential Boost Leak at OE Plastic Check Valve Housing
• Supports Boost Pressures to 40+ PSI
• Compatible with OEM and Upgraded Turbocharger Inlets
• CNC-Machined, Billet Aluminum Check Valve Body (Black Anodized), with a Heat and
• Chemical Resistant, Durable Rubber Diaphragm
• 4-Ply, Reinforced, Silicone Hose
• Retains Factory Engine Cover
• Simple Installation

What's Included:

• 2x) 034Motorsport Breather Check Valves
• 1x) 034Motorsport Reinforced Silicone Hose

Fitment:

• Audi / S4 / B9/B9.5 / 3.0 TFSI / 2018-Present
• Audi / S5 / B9/B9.5 / 3.0 TFSI / 2018-Present
• Audi / SQ5 / B9/B9.5 / 3.0 TFSI / 2018-Present
• Audi / A6 / C8 / 3.0 TFSI / 2019-Present
• Audi / A7 / C8 / 3.0 TFSI / 2019-Present